TY  - BOOK
AU  - Schwinger,Jullian
TI  - Particles, sources, and fields
SN  - 0738200530
U1  - 539.72 SC99P 
PY  - 1998///
CY  - Massachusetts
PB  - Perseus Books
KW  - Einsteinian relativity
KW  - Field concepts
ER  -